The computer Lab and the Keyboard-Review questions

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 The computer Lab and the Keyboard

 Review questions


  1. How does a computer differ from a calculator?
  2. List any three safety precautions one should observe when entering a computer lab
  3. Describe any two practices that can cause fire in the computer laboratory.
  4. The keyboard has …….. groups of keys. Describe?
  5. Which key will press to:
    • Erase a letter just typed
    • Change case
    • Use numeric keypad keys
    • Indent
    • Single spacing
    • Close a pop up window
    • Activate start menu
    • Display a drop down list
    • Seek Help
    • Move the cursor upwards on a text editor
    •  Refresh current page especially web browser
  6. What is the difference between UPS and AVS?
  7. Explain the functions of the following keys on the keyboard?

  • F1
  • Shift key
  • Control key
  • Alternate key
  • Return key
  • Home key

  1. Which key will you use to overwrite the text in a sentence?
  2. Define the following words

  • clicking
  • double clicking
  • drag and drop
  • cursor
  • pointer
  • scrolling wheel

  1. Which of these devices are input devices: Mouse, keyboard, screen, CPU, Modem, Scanner, Trackball, Joy stock, IWB, Digitizer, Camera and light pen
  2. What is the use of a dehumidifier?
  3. Why should computer lab seats designed with a straight backrest?
  4. Name two preventive measures you can take to avoid loss of data.

The Most Sought Notes

PROCESSING DEVICES

Basic Computer Practices and Maintenance Skills for Starters –Part two

Definition of a computer

Output devices